Molding sand mixing device used in wear-resistant steel casting

Abstract

The invention discloses a molding sand mixing device used in wear-resistant steel casting. When the molding sand mixing device used in wear-resistant steel casting is used, an output shaft of a motor rotates, so that stirring blades on a stirring assembly can be driven to overturn in the longitudinal direction, and meanwhile, a steering assembly drives the stirring blades to turn over and stir in all directions through meshed fit rotation of a revolutionary gear and a ring tooth on a ring table, so that molding sand raw materials in a spherical stirring tank are stirred and turned over in all directions, stirring dead angles are avoided, and the sand mixing efficiency and the sand mixing quality of the molding sand raw materials are remarkably improved; after the molding sand raw materials are uniformly mixed and discharged, a discharging door can be further closed, the motor is started to drive the stirring assembly and the steering assembly to continuously move, so that the residual molding sand raw materials adhered to the inner wall of the spherical stirring tank are scraped off by arc-shaped scraping plates on the stirring blades, and finally, the motor is closed, and the discharging door is opened to discharge the scraped molding sand raw materials, so that the cleaning convenience of the spherical stirring tank is ensured.

Description

technical field [0001] The invention relates to the technical field of sand mixers, in particular to a molding sand mixing device used in wear-resistant steel casting. Background technique [0002] In the production of wear-resistant steel, casting technology is an extremely important processing technology. Casting is to melt solid metal into liquid, and then pour the liquid metal into the mold to cool and solidify to obtain castings. Molding sand for casting molds is usually made of fine sand by adding a certain proportion of binder or other auxiliary materials, and then stirring evenly. . Since the casting of wear-resistant steel must avoid defects such as pores and inclusions in the casting, the requirements for the uniformity of the casting mold sand are extremely high. [0003] The traditional sand mixing method usually uses manual sand mixing, which consumes a lot of manpower and time, so manual sand mixing has now been replaced by sand mixers. Sand mixer, as the na...

AI Technical Summary

Problems solved by technology

In the existing sand mixer, since the movable position range of the stirrer is fixed, in the actual mixing process of the molding sand, there is still a stirring dead angle that the stirrer cannot touch, resulting in uneven mixing uniformity of the molding sand. Good, and the mixing efficiency is not high

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